| Article ID: | iaor19912061 | 
| Country: | Netherlands | 
| Volume: | 31 | 
| Issue: | 1 | 
| Start Page Number: | 71 | 
| End Page Number: | 74 | 
| Publication Date: | Mar 1991 | 
| Journal: | Discrete Applied Mathematics | 
| Authors: | Arikati Srinivasa R., Rangan C. Pandu | 
One of the fundamental notions in computer geometry is the concept of visibility. A visibility graph has vertices which correspond to geometric components such as points or lines, and edges which correspond to visibility of these components from each other. The proposed algorithm finds a two-pair in an arbitrary graph in O(